use Dynavax Dusseldorf; Rhein merged into Berna Biotech N.V. in 2002; was acquired by Crucell N.V. in March 2006; and was acquired by Dynavax Technologies Corp. and renamed Dynavax Dusseldorf GmbH; Rhein Biotech was originally part of Rhein Biotech NV, a company 93%-owned by Berna Biotech AG; Berna was acquired by Crucell NV, which divested it to Dynavax in March 2006, which renamed it Dynavax Dusseldorf
